Radiographic prevalence of root canal ramifications in a sample of root canal treatments in a Brazilian Dental School

Quadros, Iadasa de; Zaia, Alexandre Augusto; Ferraz, Caio Cézar Randi; Filho, Francisco José de Souza; Gomes, Brenda Paula Figueiredo de Almeida

doi:10.1590/s1806-83242007000200004

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…Apical delta : The low number of mandibular molars with an apical delta observed in this study is similar to what has been reported among Brazilians whereby 0.95% of treated teeth mandibular molars exhibited apical deltas [27]. In the Jordanian population [2], none of the examined mandibular molar teeth were found to have an apical delta.…”

Section: Discussionsupporting

confidence: 86%

Root canal morphology of native Tanzanian permanent mandibular molar teeth

Madjapa¹,

Minja²

2018

Pan Afr Med J

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IntroductionResearch has shown variations in morphology of root canals to differ amongst ethnic groups. We aimed to investigate the root morphology and canal configuration of permanent mandibular molars in a native Tanzanian population.Methods146 first and 85 second mandibular molars were collected from Tanzanian patients. After removal of the pulp tissues and staining using Methylene blue ink from the canal system, the teeth were decalcified and rendered clear using 98% methyl salicylate. The teeth were then examined under magnification of 10X for: number of roots, tooth length, number of canals, location of apical foramen, presence of an apical delta and canal configuration using Vertucci's classification.ResultsAll mandibular molars had two separate roots. The mean tooth length for mandibular 1st and 2ndmolars were 21.7 mm and 20.5mm, respectively, with no statistically significant difference in mean tooth length between males and females. All the mesial roots 1st and 2nd mandibular molars possessed two root canals, while 40.4% and 54.1% of the distal roots of 1st and 2nd molars, respectively, had two canals. The majority of the examined teeth had their apical foramen located centrally, with an apical delta present in the distal root of one-second molar. Root canal configuration types commonly reported were Type II in the mesial and Type I in the distal roots of the mandibular 1st molar; while the 2nd molar had, respectively, root types II / IV and type I.ConclusionThere were observed variations in the morphology of root canals in a Tanzanian population. Caution is advised to clinicians when performing root canal treatment.

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Section: Discussionsupporting

confidence: 86%

Root canal morphology of native Tanzanian permanent mandibular molar teeth

Madjapa¹,

Minja²

2018

Pan Afr Med J

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Evaluation of accessory furcation canals of permanent mandibular molars using radiography and clearing

Harb¹,

Ramos²,

Pires³

et al. 2010

Rev. odonto ciênc. (Online)

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Purpose: To evaluate the presence of furcation canals of permanent mandibular teeth using radiography and a clearing technique. Methods: The sample comprised 344 extracted mandibular molars. The presence of furcation canals was assessed by a single trained observer using magnifying lens (4x) for the dental radiographs and a dental optical microscope (30x) for the cleared specimens. Scanning electron microscopy (SEM) was used to evaluate morphological differences in the pulp chamber floor. Results: Radiographs showed that 9% of the specimens had radiolucent areas, 2% had an image that suggested a canal, and 89% had no abnormal findings. Clearing techniques did not show any accessory canal. SEM images revealed dentin tubules in recently extracted teeth; the other specimens had small areas with dentin tubules. Conclusion: Radiography was not better than the clearing technique to diagnose furcation canals. The clearing technique can provide three-dimensional visualization of the internal tooth anatomy for in vitro studies.

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Radiographic prevalence of root canal ramifications in a sample of root canal treatments in a Brazilian Dental School

Cited by 2 publications

References 23 publications

Root canal morphology of native Tanzanian permanent mandibular molar teeth

Root canal morphology of native Tanzanian permanent mandibular molar teeth

Evaluation of accessory furcation canals of permanent mandibular molars using radiography and clearing

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